Aphorismi Urbigerani, or, Certain rules clearly demonstrating the three infallible ways of preparing the grand elixir, or circulatum majus of the philosophers : discovering the secret of secrets, and detecting the errors of vulgar chymists in their operations : contain'd in one hundred and one aphorisms : to which are added, The three ways of preparing the vegetable elixir, or circulatum minus

by

Urbigerus, Baro; Faithorne, William, 1616-1691